Heavy metals in our food are most dangerous for kids
The problem of foodborne metal contamination has taken on new urgency, thanks in part to a 2021 US Congressional Report detailing high levels of metals found in infant food pulled off grocery shelves.?(More recently, high levels of lead were discovered in children’s fruit puree pouches.) Now, two new studies provide information on the correlation between […]
Researchers unveil a secret of stronger metals: Study shows what happens when crystalline grains in metals reform at nanometer scales, improving metal properties
Forming metal into the shapes needed for various purposes can be done in many ways, including casting, machining, rolling, and forging. These processes affect the sizes and shapes of the tiny crystalline grains that make up the bulk metal, whether it be steel, aluminum or other widely used metals and alloys. Now researchers at MIT […]
DIY digital archaeology: New methods for visualizing small objects and artifacts
The ability to visually represent artefacts, whether inorganics like stone, ceramic and metal, or organics such as bone and plant material, has always been of great importance to the field of anthropology and archaeology. For researchers, educators, students and the public, the ability to see the past, not only read about it, offers invaluable insights […]
Realistic portraits of squishy layer that’s key to battery performance
Lithium metal batteries could store much more charge in a given space than today’s lithium-ion batteries, and the race is on to develop them for next-gen electric vehicles, electronics and other uses. But one of the hurdles that stand in the way is a silent battle between two of the battery’s parts. The liquid between […]
Two-dimensional hybrid metal halide device allows control of terahertz emissions
Researchers have utilized two-dimensional hybrid metal halides in a device that allows directional control of terahertz radiation generated by a spintronic scheme. The device has better signal efficiency than conventional terahertz generators, and is thinner, lighter and less expensive to produce. Terahertz (THz) refers to the part of the electromagnetic spectrum (i.e., frequencies between 100 […]